188218 (2002 TK46) and (2015 VZ9)

 These two asteroids might have a common origin:

As noticed by Adrien Coffinet (see MPML message), the above plot is based on the nominal parameters but there is a high uncertainty regarding 2015 VZ9.

We have to wait for more observations.

In the meantime, in order to better characterize this aspect, I generated 100 clones of 2015 VZ9 and I plotted the min relative velocity (and related distance).

Disregarding a couple of extreme outliers, I got this plot:

This shows the spread, while not all clones are interesting, there are about 30% of the clones that have relative velocity less than 1 m/s and a distance less than 1 LD.

Cheers,

Alessandro Odasso